Two-Way Shape Memory Effect of a Shape Memory Composite Strip
Source abstract
Abstract
In this work, a NiTi shape memory alloy (SMA) wire was embedded into a rubber/shape memory polymer (SMP) soft matrix to form a composite strip with a two-way reversible bending behavior. First, the elastic moduli of SMA wire were characterized as increasing about 3 times (18.6 GPa at martensite phase and 50.1 GPa at austenite phase) from 25 °C to 90 °C. Then, an SMA composite strip using SMP to replace the rubber matrix was fabricated to significantly improve the load-bearing ability (16-fold) at 28 °C. After that, the good two-way bending behaviors of the rubber/SMP-based SMA strip with high shape deploying ratio above 80% were demonstrated. Finally, the application of rubber/SMP-based composite strips in a space-deployable antenna model with two-way reversible bending behavior was developed and demonstrated through a heating and cooling temperature cycle.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Shape Memory Alloy Transformations · Polymer composites and self-healing · Advanced Materials and Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Civil Engineering, Hebei University of Engineering, Handan 056038, China
National Key Laboratory of Science and Technology on Advanced Composite in Special Environments, Harbin Institute of Technology, Harbin 150001, China
Department of Astronautical Science and Mechanics, Harbin Institute of Technology, Harbin 150001, China
Funding
Science Foundation of National Key Laboratory of Science and Technology on Advanced Composite in Special Environments · The Natural Science Foundation of Hebei Province
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